package servlet;

import pojo.User;
import service.UserService;
import service.impl.UserServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

@WebServlet(urlPatterns = "/user")
public class UserServlet extends HttpServlet {

    // 创建业务层对象  多态
    UserService userService = new UserServiceImpl();

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        UserService userService = new UserServiceImpl();
        req.setCharacterEncoding("utf-8");
        String action = req.getParameter("action");
        if("List".equals(action)){
            List<User> users = userService.findAll();
            req.setAttribute("users", users);
            // 转发
            req.getRequestDispatcher("/list.jsp").forward(req, resp);
        }else if("add".equals(action)){
            String username = req.getParameter("name");
            String password = req.getParameter("pass");

            int result = userService.addUser(new User(username, password));
            if(result > 0){

        }
    }


    }
}
